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Arthroscopic Glenoid Bone Grafting With Soft Fixation for Recurrent Anterior Shoulder Dislocation.

ABSTRACT: Glenoid bone defect is a common structural deficiency in cases of recurrent anterior shoulder dislocation. Glenoid bone grafting is an effective method to address glenoid defect and promote labrum regeneration. In most previous reports, firm fixation of the bone grafts was conducted, but with obvious inconvenience. Thus, we introduce a special glenoid bone-grafting technique in which the bone fragments are placed to the anterior side of the glenoid through the rotator interval, with 1 inferior graft free of fixation and 1 superior graft fixed to the glenoid by suture suspension. This technique is indicated in patients with recurrent anterior shoulder dislocation with glenoid defect or needing osseous stimulation for labrum regeneration. The critical point of this technique is the proper use of special glenoid bone grafting instruments. We believe this technique will provide a special choice in the treatment of recurrent anterior shoulder dislocation.

SUBMITTER: Zhao J

PROVIDER: S-EPMC7768202 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature

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Arthroscopic Glenoid Bone Grafting With Soft Fixation for Recurrent Anterior Shoulder Dislocation.

Zhao Jinzhong J Tang Jin J

Arthroscopy techniques 20201221 12

Glenoid bone defect is a common structural deficiency in cases of recurrent anterior shoulder dislocation. Glenoid bone grafting is an effective method to address glenoid defect and promote labrum regeneration. In most previous reports, firm fixation of the bone grafts was conducted, but with obvious inconvenience. Thus, we introduce a special glenoid bone-grafting technique in which the bone fragments are placed to the anterior side of the glenoid through the rotator interval, with 1 inferior g ...[more]

PMID: 33381414

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Project description:IntroductionThe purpose of this study was to investigate the clinical and radiographic outcomes at 2 years for patients who underwent an arthroscopic xenograft bone block procedure plus ASA for recurrent anteroinferior gleno-humeral instability.MethodsThis retrospective study was conducted on patients affected by chronic anteroinferior shoulder instability. The inclusion criteria were as follows: patients must be aged 18 years or older; have recurrent anteroinferior shoulder instability, a glenoid defect >10%, assessment by the Pico area measurement system, anterior capsular insufficiency, and an engaging Hill-Sachs lesion. The exclusion criteria were as follows: multidirectional instability, glenoid bone defect <10%, arthritis, and minimum follow-up less than 24 months. Clinical outcomes were evaluated according to Western Ontario Shoulder Instability Index (WOSI) and Rowe scale. Computed tomography (CT) results were evaluated to assess any signs of resorption or displacement of the xenograft at 24 months follow-up.ResultsTwenty patients that met all the inclusion criteria underwent arthroscopic xenograft bone block procedure and ASA. The mean preoperative Rowe score was 38.3 points, and it significantly improved (P < .001), increasing to 95.5 points. ROWE level at follow-up was excellent for 18 patients (90%), fair for 1 patient (5%), and poor for another patient (5%). The mean preoperative WOSI score was 1242 points, and it improved significantly (P <.0001), with a mean score of 120 points at follow-up. In all patients, the comparative study between CT scans performed postoperatively and at final follow-up did not reveal a volume reduction of the xenografts (P > .05) and absence areas affected by signs of resorption and breakage with 34.4% of postprocedural increase of the glenoid surface, were seen.ConclusionsThe combination of ASA and bone block procedure with a xenograft was effective in the glenoid reconstruction and restoration of shoulder stability. No radiographic evidence of graft resorption, graft displacement, or glenohumeral arthritis were observed at 24-month follow-up.Level of evidenceLevel IV, therapeutic case series.

Dataset Information

Arthroscopic Glenoid Bone Grafting With Soft Fixation for Recurrent Anterior Shoulder Dislocation.

Publications

Arthroscopic Glenoid Bone Grafting With Soft Fixation for Recurrent Anterior Shoulder Dislocation.

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